The vision of Christ's second coming was frequently painted on the tympanum architectural feature of a church during the romanesque era. Therefore, "the tympanum" is the correct answer.
Tympana of religious buildings in ancient Greek, Roman, and Christian architecture frequently have pedimental sculptures or mosaics with religious iconography.
The most significant, or only, a spot for colossal sculpture on a building's exterior is frequently a tympanum over a doorway.
The space between a doorway's lintel and the arch above is known as the tympanum in Romanesque architecture. Tympana over church portals in Europe were embellished with complex and sophisticated relief sculptures during the 11th and 12th centuries.
Although the decoration's primary function was purely decorative, it also helped to identify the building's owner and his position. Tympana were typically decorated using one of three methods: carving, stamping, or intaglio.
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